@micro-frame/marko/dist/components/micro-frame-sse/parser.js

A Marko tag for building SSR friendly micro frontends.

var __defProp = Object.defineProperty;
var __markAsModule = (target) => __defProp(target, "__esModule", { value: true });
var __export = (target, all) => {
  __markAsModule(target);
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
__export(exports, {
  default: () => parser_default
});
var parser_default = (read) => function parser(iterator) {
  let buf = "";
  let isDone = false;
  function extractOneEventFromBuf() {
    const index = buf.indexOf("\n\n");
    if (index > -1) {
      const eventStr = buf.substring(0, index);
      buf = buf.substring(index + 2);
      return eventStr;
    } else if (isDone) {
      const ret = buf;
      buf = "";
      return ret;
    }
    return;
  }
  return {
    async next() {
      while (true) {
        const eventStr = extractOneEventFromBuf();
        if (eventStr) {
          const ev = parseEvent(eventStr);
          return {
            value: read ? read(ev) : [ev.lastEventId, ev.data, true],
            done: false
          };
        }
        if (isDone) {
          return {
            value: void 0,
            done: true
          };
        } else {
          const { value, done } = await iterator.next();
          if (done) {
            isDone = true;
          } else {
            buf += value.toString();
          }
        }
      }
    }
  };
};
function parseEvent(eventStr) {
  const ev = {
    id: void 0,
    data: "",
    event: void 0
  };
  eventStr.split("\n").forEach((line) => {
    const lineMatch = /^(id|event|data): (.*)$/.exec(line);
    if (lineMatch) {
      if (lineMatch[1] === "data") {
        ev[lineMatch[1]] += lineMatch[2];
      } else {
        ev[lineMatch[1]] = lineMatch[2];
      }
    }
  });
  return {
    lastEventId: ev.id,
    data: ev.data,
    type: ev.event
  };
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {});